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08-09-2005, 08:37 AM
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#1 | |
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AF Newbie
 Join Date: Jul 2005
Location: Toledo, Ohio
Posts: 21
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Trouble code 45
My 1994 S-10 is showing trouble code 45 only after the truck is driven on the highway. The "service engine soon" light comes on only after I have driven over 65 MPH for several miles. The light shuts off after I slow to 35 MPH. I then check the computer and Trouble Code 45 comes up. Trouble Code 45 is-Oxygen sensor (O2S) circuit (rich exhaust indicated). Can anyone tell me what my be causing this condition to happen.
Thanks for any help provided. |
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08-09-2005, 08:42 AM
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#2 | |
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AF Newbie
Join Date: Jul 2005
Location: Toledo, Ohio
Posts: 21
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I'm sorry, this truck is a 1994 with a 4.3 Vortec with CPFI.
Last edited by intimidatordei; 08-09-2005 at 09:17 AM. |
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08-17-2005, 12:02 AM
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#3 | |
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AF Enthusiast
Join Date: Feb 2005
Location: guffey, Colorado
Posts: 668
Thanks: 27
Thanked 30 Times in 30 Posts
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send me a pm, or email address, and I'll shoot you the GM
service page to troubleshoot 45 chris nrt racing |
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